client/rpc: migrate go-ipfs-http-client

.github/workflows/build.yml

.golangci.yml

client/rpc/README.md

client/rpc/api.go

client/rpc/api_test.go

client/rpc/apifile.go

client/rpc/block.go

client/rpc/dag.go

client/rpc/dht.go

client/rpc/errors.go

client/rpc/errors_test.go

client/rpc/key.go

client/rpc/name.go

client/rpc/object.go

client/rpc/path.go

client/rpc/pin.go

client/rpc/pubsub.go

client/rpc/request.go

client/rpc/requestbuilder.go

client/rpc/response.go